TIMco 50037CAB Cavity Anchor (45mm Screw) M5 x 37mm Bag of 70 Metal Cavity Anchors. Metal Cavity Anchors sold in a branded TIMbag. Product Features: A cavity fixing that is ideal for hanging radiators, brackets, hand rails and shelving units. When installing multiple anchors a TIMCO Setting Tool is recommended for a fast and efficient way of installation. Thread Dia. mm: M5 Anchor Length mm: 37 Screw Length mm: 45 Head Type: Pan Recess Type: CombiGrip Board mm: 6: 13 Drill Hole Dia. mm: 10.0 Fixture Hole Diameter mm: 5.0 Material: Carbon Steel Finish: Zinc. A cavity fixing that is ideal for hanging radiators, brackets, hand rails and shelving units. When installing multiple anchors a TIMCO Setting Tool is recommended for a fast and efficient way of installation. Please Note: Due to geographical locations we are unable to deliver to Highlands.